Malicious PDF — malware analysis report

Static analysis result for SHA-256 68a2826a8d066aea…

MALICIOUS

PDF

71.8 KB Created: 2020-08-21 07:51:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-26
MD5: 1a1fca2eebc9e5bd779b8d884d671772 SHA-1: e05c7757a1ffd538a3be074721b8f5c6f46d1672 SHA-256: 68a2826a8d066aeaa77acd220cff238ca8b7cef42f2c046bdfbe7e77400f0c6c
154 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF contains embedded links, one of which points to a known malicious redirector infrastructure (ttraff.com). The document body, though partially corrupted, mentions 'Dnd 5e sorcerer draconic bloodline guide' and includes the malicious URL, suggesting a lure to trick users into clicking. The presence of numerous other PDF links, many pointing to Shopify, indicates a potential link farm or SEO manipulation tactic to obscure the malicious destination.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 4

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://ttraff.com/pify?keyword=dnd+5e+sorcerer+draconic+bloodline+guide In PDF document text
    • http://forijejas.steam-era.com/uploads/1/3/0/7/130776433/zakenaxi_vijuno.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0429/7388/8671/files/35963907620.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/1577/4108/files/lofikamu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/6131/2676/files/synthesis_of_dibenzalacetone_by_aldol_condensation.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5650/5756/files/excel_2020_formulas.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/5752/1574/files/john_deere_7510_for_sale.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/9143/5422/files/ftb_rf_to_eu.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0434/9935/6324/files/welakorugazorejerir.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/6912/0413/files/spatial_data_types.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/7795/9833/files/40898310369.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0440/0755/5222/files/fluid_mechanics_with_engineering_applications.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0427/7141/5196/files/google_sketchup_floor_plan_template.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0431/2930/7293/files/new_headway_academic_skills.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dcf9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDCF9 5368 bytes
SHA-256: 774edc04f0d9ed0952d1e6766ecda154b0cd49b603c8a077d2c6d928c42eeb2d
font_01_sfnt_off0000ef40.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEF40 10120 bytes
SHA-256: a348820fe2a5c4b4179cbed505a61b8b922ec656f311b974f2c4cef156fb0514